CN102012241A - Method for detecting faults of automobile sensor based on sensor characteristics - Google Patents
Method for detecting faults of automobile sensor based on sensor characteristics Download PDFInfo
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- CN102012241A CN102012241A CN 201010290780 CN201010290780A CN102012241A CN 102012241 A CN102012241 A CN 102012241A CN 201010290780 CN201010290780 CN 201010290780 CN 201010290780 A CN201010290780 A CN 201010290780A CN 102012241 A CN102012241 A CN 102012241A
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Abstract
The invention provides a method for detecting the faults of an automobile sensor based on sensor characteristics, comprising the following steps of: (1) providing sensor detecting equipment in which is internally provided with a sensor detecting program, wherein a sensor characteristic database is contained in the detecting program; (2) providing a measuring instrument and electrically the measuring instrument and the sensor detecting equipment with a sensor to be detected; (3) running the sensor detecting program by utilizing the sensor detecting equipment and providing a user operation interface so that a user can operate according to the prompt of the operation interface to execute the test on the sensor step by step; (4) simultaneously displaying a measured value and an analog quantity value obtained by transforming according to the sensor characteristics to the user by utilizing the sensor detecting equipment; and (5) judging whether the faults exist in the sensor to be detected according to the compared result of the analog quantity value and an observed value displayed on the measuring instrument by the user. The invention provides a convenient and rapid method for detecting the faults of the sensor for the user by utilizing the sensor characteristics and can leave out the restraint and limitation on automobile testing.
Description
Technical field
The present invention relates to the automobile sensor fault detection technique, relate in particular to a kind of sensor fault detection method of utilizing automobile sensor self characteristics attribute to be used as the basis for estimation of fault detect.
Background technology
Automobile comes out existing century-old, and development has become the indispensable vehicles so far.The technology of using on the automobile is also complicated day by day, and nowadays, nearly all automobile is fit on advanced engine computer control system in the present age all.This control system essence is a feedback control system, the input of system promptly comes from sensor, pass through the signals collecting of the various sensors of automotive interior just, the central processing unit ECU of automotive interior just can get access to every operational factor of current automobile, carry out comprehensive analysis and calculating, produce the more excellent control output of current automobile, make the operation of automobile remain on a more excellent performance level.The quality of automobile sensor plays critical role in this feedback control system.When automobile produced fault, how whether the failure judgement reason was relevant with sensor, and how quickly and easily detecting sensor is very bad, was the problem that auto vendor, maintenance company all very are concerned about.
Common in the market way is to adopt displacement and simulation combined method, being about to sensor pulls down, replace sensor to be linked in the control system on the automobile with analog machine, start up the car then, this analog machine is exported the signal that is replaced sensor to the automobile computer simulation simultaneously, and so by the displacement and the simulation of sensor, whether the observation vehicle failure disappears, illustrate that then working sensor is bad if fault disappears, otherwise explanation vehicle failure and sensor are irrelevant.Adopt the method for displacement and simulation, can satisfy the requirement that sensor fault detects to a certain extent, but also proposed extra requirement simultaneously.At first, analog machine will store the normal voltage output signal of various sensors, could guarantee the sensing range of sensor like this, but is not that every kind of sensor can obtain its normal voltage output signal easily; Secondly, still some is coarse for the normal voltage output signal of simulation, is not the standard on the absolute sense, and the result of test can only do the qualitative analysis reference, can not accomplish quantitative test, has some errors in the accuracy.Therefore, be necessary very much to develop a kind of novel sensor detecting, improve simple, the single situation of current detection means.
Summary of the invention
The objective of the invention is to, a kind of automobile sensor fault detection method based on sensor characteristic is provided, it sets up the sensor characteristic normal data, forms the standard feature database, with the foundation as sensor, fault judgement;
Another object of the present invention is to, a kind of automobile sensor fault detection method based on sensor characteristic is provided, it utilizes sensor self characteristics attribute, is user's sensor fault detection method efficiently of providing convenience, and can save constraint and restriction with regard to the car test.
For achieving the above object, the invention provides a kind of automobile sensor fault detection method, comprise the steps: based on sensor characteristic
Step 1, provide a sensor equipment, include the sensor program in this checkout equipment, include the sensor characteristic database in this trace routine;
Step 2, provide a measurement instrument, this measurement instrument and sensor equipment are electrically connected with sensor to be measured respectively;
Step 4, sensor equipment are shown to the user simultaneously with measured value with according to the analog value of sensor characteristic conversion gained;
Include master control program, resistance test, testing current, voltage tester, sensor characteristic database in the described sensor equipment, reach the firmware upgrade functionality module.
Described sensor equipment also wraps usb and drives, to support to finish by usb the function of firmware upgrade.
Include sensor device upgrade instrument in the described firmware upgrade functionality module, comprise in this sensor device upgrade instrument that TipWizard, firmware program read, firmware program is downloaded, usb communication, and sensor characteristic data edition functional module.
Described sensor device upgrade instrument operates under the Windows operating system environment.
Include usb in the described Windows operating system and drive,, finish the download and upgrade of sensor equipment firmware program to support the usb data communication.
Beneficial effect of the present invention: the automobile sensor fault detection method based on sensor characteristic provided by the present invention, the data value that it is obtained sensor equipment, change the magnitude of physical quantity of back gained based on sensor standard feature database, compare with the measurement instrument observed reading, judge whether sensor works bad, it is based on sensor self characteristics attribute, is user's sensor fault detection method efficiently of providing convenience, and can save constraint and restriction with regard to the car test.
In order further to understand feature of the present invention and technology contents, see also following about detailed description of the present invention and accompanying drawing, yet accompanying drawing only provide with reference to and the explanation usefulness, be not to be used for the present invention is limited.
Description of drawings
Below in conjunction with accompanying drawing,, will make technical scheme of the present invention and other beneficial effects apparent by the specific embodiment of the present invention is described in detail.
In the accompanying drawing,
Fig. 1 is the schematic flow sheet of the automobile sensor fault detection method based on sensor characteristic of the present invention;
Fig. 2 the present invention is based on equipment connecting relation synoptic diagram in the automobile sensor fault detection method of sensor characteristic;
Fig. 3 is automobile sensor checkout equipment program function block diagram among the present invention;
Automobile sensor checkout equipment upgrading tool program function block diagram among the present invention of Fig. 4 position.
Embodiment
Technological means and the effect thereof taked for further setting forth the present invention are described in detail below in conjunction with the preferred embodiments of the present invention and accompanying drawing thereof.
As shown in Figure 1, the invention provides a kind of automobile sensor fault detection method based on sensor characteristic, it comprises the steps:
Step 1, provide a sensor equipment, include the sensor program in this checkout equipment, include the sensor characteristic database in this trace routine.With the sensor characteristic normal data, as temperature-resistance performance data of the pressure-resistance characteristic data of pressure transducer, pressure-current characteristics data, temperature sensor or the like, form the standard feature database, with foundation as sensor, fault judgement.
Step 2, provide a measurement instrument, this measurement instrument and sensor equipment are electrically connected with sensor to be measured respectively.As shown in Figure 2, during use, only sensor equipment 10 and measurement instrument 20 need be connected with sensor 30 to be measured respectively and get final product.In the present invention, this sensor equipment 10 electrically connects with sensor 30 to be measured by a test wire harness 12, and measurement instrument 20 electrically connects with sensor 30 to be measured by an instrument wire harness 22.
Step 4, sensor equipment are shown to the user simultaneously with measured value with according to the analog value of sensor characteristic conversion gained.Sensor equipment is presented on the operation interface of sensor equipment with the result value of test with according to the physical quantity numerical value of sensor characteristic data-switching.
In sum, automobile sensor fault detection method based on sensor characteristic provided by the present invention, the data value that it is obtained sensor equipment, change the magnitude of physical quantity of back gained based on sensor standard feature database, compare with the measurement instrument observed reading, judge whether sensor works badly, and it is based on sensor self characteristics attribute, be user's sensor fault detection method efficiently of providing convenience, and can save constraint and restriction with regard to the car test.
The above; for the person of ordinary skill of the art; can make other various corresponding changes and distortion according to technical scheme of the present invention and technical conceive, and all these changes and distortion all should belong to the protection domain of accompanying Claim of the present invention.
Claims (6)
1. the automobile sensor fault detection method based on sensor characteristic is characterized in that, comprises the steps:
Step 1, provide a sensor equipment, include the sensor program in this checkout equipment, include the sensor characteristic database in this trace routine;
Step 2, provide a measurement instrument, this measurement instrument and sensor equipment are electrically connected with sensor to be measured respectively;
Step 3, sensor equipment operation sensor program provide user interface, and the user carries out operation according to the prompting of operation interface, carries out the test to sensor step by step;
Step 4, sensor equipment are shown to the user simultaneously with measured value with according to the analog value of sensor characteristic conversion gained;
Step 5, user according to analog value be presented at the result that the observed reading on the measurement instrument compares, judge whether sensor to be measured has fault.
2. the automobile sensor fault detection method based on sensor characteristic as claimed in claim 1, it is characterized in that, include master control program, resistance test, testing current, voltage tester, sensor characteristic database in the described sensor equipment, reach the firmware upgrade functionality module.
3. the automobile sensor fault detection method based on sensor characteristic as claimed in claim 2 is characterized in that, described sensor equipment also wraps usb and drives, to support to finish by usb the function of firmware upgrade.
4. the automobile sensor fault detection method based on sensor characteristic as claimed in claim 2, it is characterized in that, include sensor device upgrade instrument in the described firmware upgrade functionality module, comprise in this sensor device upgrade instrument that TipWizard, firmware program read, firmware program is downloaded, usb communication, and sensor characteristic data edition functional module.
5. the automobile sensor fault detection method based on sensor characteristic as claimed in claim 4 is characterized in that, described sensor device upgrade instrument operates under the Windows operating system environment.
6. the automobile sensor fault detection method based on sensor characteristic as claimed in claim 5, it is characterized in that, include usb in the described Windows operating system and drive,, finish the download and upgrade of sensor equipment firmware program to support the usb data communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010290780 CN102012241A (en) | 2010-09-21 | 2010-09-21 | Method for detecting faults of automobile sensor based on sensor characteristics |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010290780 CN102012241A (en) | 2010-09-21 | 2010-09-21 | Method for detecting faults of automobile sensor based on sensor characteristics |
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| CN102012241A true CN102012241A (en) | 2011-04-13 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004813A (en) * | 2010-09-28 | 2011-04-06 | 深圳市元征软件开发有限公司 | Sensor simulation method and device |
| CN102419593A (en) * | 2011-10-08 | 2012-04-18 | 济中节能技术（苏州）有限公司 | Sensor fault diagnosis method based on data mining |
| CN106032994A (en) * | 2015-03-16 | 2016-10-19 | 大陆汽车电子(长春)有限公司 | Sensor function detection method and device |
| CN109421743A (en) * | 2017-08-28 | 2019-03-05 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for monitoring autonomous vehicle |
| CN111543861A (en) * | 2020-05-07 | 2020-08-18 | 珠海格力电器股份有限公司 | Method and device for determining fault of color screen cooking equipment and color screen cooking equipment |
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| US20040089060A1 (en) * | 2002-11-13 | 2004-05-13 | Toyota Jidosha Kabushiki Kaisha | Fault detection system and method |
| CN1776392A (en) * | 2004-11-16 | 2006-05-24 | 株式会社万都 | Device and method for determining vehicle speed sensor fault for electronic coutrol system |
| CN101270973A (en) * | 2007-03-20 | 2008-09-24 | 大星电机工业株式会社 | Device and method for detecting error of steering angle sensor |
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| US6470300B1 (en) * | 1998-04-28 | 2002-10-22 | Daimlerchrysler Ag | Method and system for detecting and localizing sensor defects in motor vehicles |
| US20040089060A1 (en) * | 2002-11-13 | 2004-05-13 | Toyota Jidosha Kabushiki Kaisha | Fault detection system and method |
| CN1776392A (en) * | 2004-11-16 | 2006-05-24 | 株式会社万都 | Device and method for determining vehicle speed sensor fault for electronic coutrol system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102004813A (en) * | 2010-09-28 | 2011-04-06 | 深圳市元征软件开发有限公司 | Sensor simulation method and device |
| CN102004813B (en) * | 2010-09-28 | 2012-12-26 | 深圳市元征软件开发有限公司 | Sensor simulation method and device |
| CN102419593A (en) * | 2011-10-08 | 2012-04-18 | 济中节能技术（苏州）有限公司 | Sensor fault diagnosis method based on data mining |
| CN102419593B (en) * | 2011-10-08 | 2013-07-10 | 济中节能技术（苏州）有限公司 | Sensor fault diagnosis method based on data mining |
| CN106032994A (en) * | 2015-03-16 | 2016-10-19 | 大陆汽车电子(长春)有限公司 | Sensor function detection method and device |
| CN106032994B (en) * | 2015-03-16 | 2019-01-25 | 大陆汽车电子(长春)有限公司 | A kind of sensor function detection method and equipment |
| CN109421743A (en) * | 2017-08-28 | 2019-03-05 | 通用汽车环球科技运作有限责任公司 | Method and apparatus for monitoring autonomous vehicle |
| CN111543861A (en) * | 2020-05-07 | 2020-08-18 | 珠海格力电器股份有限公司 | Method and device for determining fault of color screen cooking equipment and color screen cooking equipment |
| CN111543861B (en) * | 2020-05-07 | 2021-07-06 | 珠海格力电器股份有限公司 | Method and device for determining fault of color screen cooking equipment and color screen cooking equipment |
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Application publication date: 20110413 |